Abstract: the motor (see FIGURE 12). The error amp directly varies the PWM duty cycle of the voltage applied to , is the power source for the motor phases and is nominally +28 VDC. The normal operating voltage may , motor set up might be different. FIGURE 8. BRUSHMOTOR HOOK UP OUTPUT CURRENT CURRENT MONITOR OUT , current during fault conditions.(See TABLE 2) Current Limit accuracy is +10/-15%. BRUSHMOTOR OPERATION The PWR-82521 PWR-82521 can also be used as a brushmotor controller for current or voltage control in an ...